JPH06304286A - Ski plate having honeycomb structure containing fiber - Google Patents

Abstract

PURPOSE:To obtain a ski plate which is lightweight, possesses the excellent operation performance, and is advantageously portable, by using a honeycomb structure which is obtained by arranging a number of cores made of the resin containing fibers in the longitudinal direction, and nipping them by the similar resin plates from the upper and lower and fixing, as core member. CONSTITUTION:A core body 13 is formed by winding carbon fiber fabric on a core member rod having a circular section, impregnating the carbon fiber fabric a with resin, and carrying out pressing by applying pressure, and similarly a plate 15 is formed to a flat surface form by impregnating the carbon fiber fabric with the resin and carrying out pressing by applying a pressure. A number of cores 13 are arranged continuously in the longitudinal direction, and the plate 15 has each adhesive layer, and the adhesive layer surface is nipped in a sandwhich form from the upper lower in contact with the core 13, and the adhesive is hardened by keeping this state for a prescribed time, and a fiber containing honeycomb structure member is obtained. Accordingly, this member is worked to a prescribed shape, and then used as a core member 9, and a ski plate 1 having the honeycomb structure can be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ski structure.

2. Description of the Related Art Conventional skis are composed of several layers. That is, a bottom material with low friction, edge metals provided on both ends of the bottom material, a torsion-resistant material having a box-shaped cross section provided on these, a core material arranged in the torsion-resistant material and responsible for the main strength of the whole, Furthermore, it is provided on these and is made of a surface material that is resistant to scratches and the like. Further, wood is used as the core material, and other promising materials in place of wood have not appeared so much.

[0002]

However, in the above-mentioned prior art, since the core material is made of wood, the weight of the entire ski tends to be heavy, and the heavy weight makes the operability inferior and is inconvenient to carry. there were. The present invention has been made to solve the above problems, and an object thereof is to provide a ski having a fiber-containing honeycomb structure, which has a light weight as a whole, is excellent in operability, and is convenient to carry.

[0003]

In order to achieve the above-mentioned object, the present invention has a structure in which a large number of vertically arranged cores made of a hollow member made of a resin having fibers inside are arranged adjacently. A fiber-containing honeycomb structure material characterized by being sandwiched and fixed by plates of the same resin from above and below is adopted as a core material.

[0004]

[Function] As a resin raw material containing fibers in advance, a hollow member is formed into a core by injection molding or a drawing method, or a fiber cloth is wound around a core material and then impregnated with a resin to be solidified. This creates a tubular core. A honeycomb structure can be easily made by arranging a large number of such vertically arranged cores adjacent to each other and sandwiching and sandwiching the same resin plates from above and below in a sandwich shape. By adopting this fiber-containing honeycomb structure as the core material, the ski has sufficient strength and is lightweight.

[0005]

An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view of one ski 1 viewed from the front. FIG. 2 is an enlarged partial sectional view of a II portion of FIG. 1 showing a multilayer structure. The cross section of the ski 1 also has several layers as in the prior art. That is, the bottom material 3 is made of synthetic resin for forming a sliding surface with low friction. Edge metals 5 are fitted to both ends of the bottom material 3. Above these, a torsion resistant material 7 and a core material 9 are provided as strength members. The twisting member 7 has a box-shaped cross section and is called a torsion box. In this torsion resistant material 7, a core material 9 made of a fiber-containing honeycomb structure material according to this embodiment is arranged. Further, a surface material 11 that is resistant to scratches is provided on these. The surface material 11 has a downward substantially U-shape, and covers the upper surface and the side surface. The surface material 11 may be omitted.

The fiber-containing honeycomb structure is shown in FIG.
It has the structure shown in FIG. 1 and is manufactured as follows, that is, it is composed of a large number of short cylindrical cores 13 and plates 15. The core 13 is formed by winding a carbon fiber woven fabric around a core rod having a circular cross section, impregnating it with a resin, and then applying pressure to press it. Similarly, the plate 15 is formed into a flat surface by impregnating a carbon fiber woven fabric with a resin and pressing it with pressure. The cores 13 are arranged vertically, and a large number of them are arranged adjacent to each other. Plate 15
Each is provided with an adhesive layer. Then, the adhesive layer surface is brought into contact with the core 13 and sandwiched from above and below in a sandwich shape. At this time, when the adhesive has sufficient fluidity, the surface tension causes a gap between the plate 15 and the core 13,
Alternatively, it penetrates into the gap between the cores 13. In this state, the adhesive is hardened by elapse of a predetermined time, and a fiber-containing honeycomb structure material is obtained.

This material is processed into a predetermined shape and used as the core material 9. In this process, the thickness of the ski 1 changes depending on the longitudinal direction (see FIG. 1), so the height of the core 13 is gradually changed or the core shape is inclined, that is, a cylinder. Instead, the curved surface is realized by combining the cores of the truncated cone. Also, the upper end of each core is cut diagonally. The ski 1 has to change its elasticity and rigidity at each part in the longitudinal direction so that the whole ski 1 has a predetermined function. For example, the runout of the ski tip should not be too great.
The core material 9 using the fiber-containing honeycomb structure material of this embodiment can sufficiently fulfill this function. That is, the diameter, the wall thickness, and the density of the core 13 can be gradually changed along the longitudinal direction to change the elasticity and the rigidity to arbitrary values. As a result, for example, the tip of the ski 1 can have an optimum flexibility, and it is possible to prevent the runout to a minimum.

In the above embodiments, the honeycomb structure is made by the cylindrical core 13, but in other embodiments, a polygonal cylinder, that is, a hexagonal cylinder, a pentagonal cylinder, a square cylinder, a triangular cylinder,
Alternatively, it is of course possible to make a honeycomb structure with a truncated cone or a truncated pyramid. Further, although the core 13 and the plate 15 are fixed to each other by the adhesive, in other embodiments, it is possible to melt a part of the resins and weld them to each other, and then cool and fix them. In addition to carbon, resin such as Kevlar or natural fiber such as hemp can be used as the fiber. The fiber cloth is not limited to the woven cloth and may be a non-woven cloth.

[0009]

As described above, according to the ski having the fiber-containing honeycomb structure of the present invention, the ski having the fiber-containing honeycomb structure that can be manufactured according to the present invention is used as the core material of the ski. It has sufficient strength and is large and light in weight. Therefore, it is easy to operate and convenient to carry.

[Brief description of drawings]

FIG. 1 is a perspective view of a ski according to an embodiment of the present invention.

FIG. 2 is an enlarged partial sectional view of a II portion of FIG. 1 showing a multilayer structure.

3 (a) is an enlarged perspective view showing the core material of FIG. 2. FIG.
(B) is an enlarged view of part b of (a).

[Explanation of symbols]

 1 Ski Plate 3 Bottom Material 5 Edge Metal 9 Core Material 11 Surface Material 13 Core 15 Plate

Claims (1)

[Claims] 1. A plurality of vertically arranged cores made of a hollow member formed of a resin having fibers inside are arranged adjacent to each other, and sandwiched and sandwiched by plates of the same resin from above and below. A ski with a fiber-containing honeycomb structure that uses a fiber-containing honeycomb structure material as a core material.